Suppose a student adds naphthalene to each different solvents. The molality for each solution is $0\mathrm{.}872$mol$/$kg solvent. Which solution will have the largest freezing point relative to the freezing point of the pure solvent? Benzene $($kf$=5\mathrm{.}12$ C$/$m$)$ cyclohexane $($Kf$=20\mathrm{.}1$C$/$m$)$ phenol $($Kf$=7\mathrm{.}27$C$/$m$)$ nitrobenzene $($Kf$=8\mathrm{.}1$C$/$m$)$